Reducing Hazards in Agricultural Mechanics. Ag 1 Safety: Unit 2. Objectives. Reduce hazards in ag mechanics State the three conditions necessary for combustion Match appropriate types of fire extinguishers to each class of fire. Reducing Fire hazards.
Safety: Unit 2
Fuel: any combustible material that will burn
Heat: the energy that causes temperture to rise
Oxygen: atmospheric gas that must be present for fuels to burn